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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Cancer Prev Res (Phila). 2012 Oct 11;5(12):1368–1374. doi: 10.1158/1940-6207.CAPR-12-0233

Table 1.

Randomized subject baseline characteristics.

Population Treatment Group p-value
Original Study DFMO (n=144) Placebo (n=147)
Age(y) 61.6 ± 10.7 60.2 ± 11.0
Gender
 Female 57 (39.6%) 59 (40.1%)
 Male 87 (60.4%) 88 (59.9%)
Race
 White 144 (99.3%) 147 (100%)
 Hispanic 1 (0.7%) 0 (0%)
Body Surface Area (m2) 1.94 ± 0.23 1.99 ± 0.23
Prior NMSC 4.2 ± 7.7 4.9 ± 5.7 P=0.10
Prior Tumor Rate 2.3 ± 3.3 2.1 ± 3.4 P=0.08
Retrospective Study DFMO (n=108) Placebo (n=101)
Age(y) 61.4 ± 10.9 60.4 ± 11.0
Gender
 Female 43 (39.8%) 46 (45.5%)
 Male 65 (60.2%) 55 (54.5%)
Race
 White 107 (99.5%) 101 (100%)
 Hispanic 1 (0.5%) 0 (0%)
Body Surface Area (m2) 1.94 ± 0.23 1.96 ± 0.23
Prior NMSC 3.2 ± 3.0 5.5 ± 6.3 P=0.01
Prior Tumor Rate 2.5 ± 3.5 2.4 ± 3.9 P=0.57

Note: for continuous data, mean values ± SD are presented. For categorical data, N (%) are presented. Prior tumor rate is defined as the number of prior skin cancers divided by the time from initial diagnosis to randomization.